Antivirus

Antivirus

Antivirus

by Md Mizanur Rahman -
Number of replies: 30

How antivirus works and describe its feature.

In reply to Md Mizanur Rahman

Re: Antivirus

by Ashraful Islam -
Antivirus: Antivirus software is designed to detect, prevent, and remove malicious software or malware from computers, networks, and mobile devices.
The key features of antivirus are:
1. Scanning: Antivirus software scans files, programs, and systems for malware.
2. Real-time protection: Many antivirus programs provide real-time protection.
3. Quarantine: When malware is detected, antivirus software may quarantine the infected file or program.
4. Automatic updates: Antivirus software regularly updates its virus definitions and other detection mechanisms.
5. Firewall: Some antivirus software includes a firewall that helps protect the system from network-based attacks.
6. Email protection: Many antivirus programs offer email protection.
7. System optimization: Some antivirus software includes system optimization tools.
In reply to Md Mizanur Rahman

Re: Antivirus

by Sadia Rahaman -
Antivirus works:
Antivirus products work by detecting, quarantining and/or deleting malicious code, to prevent malware from causing damage to your device. Modern antivirus products update themselves automatically, to provide protection against the latest viruses and other types of malware.
Features:
1) Easy To Manage
The solution must be usable—both for the end-user and for admins. Admins often have several programs they need to manage, so they don’t have a huge amount of time to spend getting to grips with new solutions. For this reason, it’s important that it is clear how to use the product.
2) Recognize Polymorphous Attacks
Polymorphic malware is a form of malware capable of evolving and altering its properties to avoid detection. This can include viruses, bots, worms, trojans, or keyloggers that actively adapt their identifiable characteristics in order to evade standard detection techniques.
3) Automatic Updates
For all forms of software, updates are a necessity. However, this is particularly true when it comes to antivirus solutions since cybercriminals are constantly adapting and creating new, innovative forms of malware.
4) Real-Time Scanning
This is an incredibly important feature in any antivirus product. While all antivirus software is designed specifically to detect the presence of malware, they don’t all do this in the same way.
5) Backups
This is a feature that a lot of antivirus solutions offer, but not all of them. The benefits of backups are clear: any organization that has experienced a cyberattack or serious data loss would be in a much better position if they could turn to backups without having to think twice.
In reply to Md Mizanur Rahman

Re: Antivirus

by Md Mashud Jamil -
Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.
Features of Antivirus Software,
1. Background Scanning
2.Complete System Scans
3.Virus Definitions
In reply to Md Mizanur Rahman

Re: Antivirus

by Sanjita Israt Tura -
Throughout a file, program, or software scan, antivirus software compares a particular set of code with data from its database. It considers code to be malware and restrictions or removes it if it looks or is identical to a known malware infection found in the database.
Features of Antivirus Software:
Background Scanning - Antivirus software helps to scan all the applications, files, and programs that are opened from the backend. This process is called on-access scanning. This ensures real-time protection, giving complete computer protection from threats and other malware attacks.

Complete System Scans - Full system scans are by and large not really vital when you have an on-access scanning system in hand. Full system scans become indispensable when antivirus software is installed for the first time or if the antivirus software is not updated with new virus definitions recently.

Virus Definitions - Antivirus software functions based on the virus definitions to recognize if the file/program is genuine or malware intended. That is the main reason to archive the new virus definitions. The virus definitions stash the signatures of any viruses that has been categorized as infectious in the wild.
In reply to Md Mizanur Rahman

Re: Antivirus

by Hosne Ara Bithi 201-15-3738 -
Antivirus works:
Antivirus software scans a file, program, or an application and compares a specific set of code
with information stored in its database. If it finds code that is identical or similar to a piece of
known malware in the database, that code is considered malware and is quarantined or removed.
Features of Antivirus Software:
1. Background Scanning - Antivirus software helps to scan all the applications, files and
programs that are opened from the backend. This process is called an on-access scanning. This
ensures real-time protection, giving complete computer protection from threats and other
malware attacks.
2. Complete System Scans - Full system scans are by and large not really vital when you have
an on-access scanning system in hand. Full system scans become indispensable when an
antivirus software is installed for the first time or if the antivirus software is not updated with
new virus definitions recently. This is done to ensure that there are no malware infections
hiding behind the codes on the system. Full framework checks are additionally valuable when
you repair your contaminated PC.
3. Virus Definitions - Antivirus software functions based on the virus definitions to recognize if
the file/program is genuine or malware intended. That is the main reason to archive on the new
virus definitions. The virus definitions stashes the signatures of any viruses that has been
categorized as infectious in the wild. In the event that the antivirus software checks any
application or file and that it finds the document infected by a malware that looks similar to
the malware in the malware definition, then that file or program is stopped from executing and
then it is moved into the quarantine. The antivirus software then processes the malware and
later sends it to the lab for analysis on the traits and the purpose behind the malware creation.
In reply to Md Mizanur Rahman

Re: Antivirus

by Md. Bariul Munshi 201-15-3314 -
Antivirus works:
Antivirus products work by detecting, quarantining and/or deleting malicious code, to prevent malware from causing damage to your device. Modern antivirus products update themselves automatically, to provide protection against the latest viruses and other types of malware.
Features:
1) Easy To Manage
The solution must be usable—both for the end-user and for admins. Admins often have several programs they need to manage, so they don’t have a huge amount of time to spend getting to grips with new solutions. For this reason, it’s important that it is clear how to use the product.
2) Recognize Polymorphous Attacks
Polymorphic malware is a form of malware capable of evolving and altering its properties to avoid detection. This can include viruses, bots, worms, trojans, or keyloggers that actively adapt their identifiable characteristics in order to evade standard detection techniques.
3) Automatic Updates
For all forms of software, updates are a necessity. However, this is particularly true when it comes to antivirus solutions since cybercriminals are constantly adapting and creating new, innovative forms of malware.
4) Real-Time Scanning
This is an incredibly important feature in any antivirus product. While all antivirus software is designed specifically to detect the presence of malware, they don’t all do this in the same way.
5) Backups
This is a feature that a lot of antivirus solutions offer, but not all of them. The benefits of backups are clear: any organization that has experienced a cyberattack or serious data loss would be in a much better position if they could turn to backups without having to think twice.
In reply to Md Mizanur Rahman

Re: Antivirus

by Sheikh Bodrun Nesa Lubna -
Antivirus software is a type of computer program that is designed to detect, prevent, and remove malicious software, or malware, from a computer system. Here are the key features of antivirus software:

Virus detection: Antivirus software uses various techniques to detect viruses and other types of malware. These techniques include signature-based detection, behavior-based detection, and heuristics-based detection.

Real-time scanning: Antivirus software constantly scans the computer system in real-time for malware, and automatically removes or quarantines any threats that are detected.

Automatic updates: Antivirus software automatically updates its virus definitions and software versions to ensure that it is up-to-date with the latest threats.

Quarantine and removal: Antivirus software quarantines infected files to prevent them from further spreading the infection, and provides users with options to remove or repair the infected files.

Email scanning: Many antivirus software includes an email scanner that checks incoming and outgoing emails for malware.

Firewall integration: Some antivirus software includes a firewall that monitors and controls network traffic, adding an additional layer of protection against cyber attacks.
In reply to Md Mizanur Rahman

Re: Antivirus

by Mahmudul Hassan Shihab -
Antivirus software detects and removes malicious software like viruses, worms, Trojans, spyware, and adware. It uses various techniques such as signature, behavior and heuristics-based detection, quarantines and removes infected files, provides real-time protection, scans the system for viruses, and requires regular updates for maximum protection.
In reply to Md Mizanur Rahman

Re: Antivirus

by Afsana Ahmed Ema 201-15-3223 -
Antivirus software is designed to detect, prevent, and remove malicious software, also known as malware, from a computer or network.

Some common features of antivirus software are,
Real-time scanning, Automatic updates, Quarantine, Scheduled scans, Email scanning

Overall, antivirus software is an essential component of any comprehensive security strategy, as it helps to protect against the ever-present threat of malware and other types of cyberattacks.
In reply to Md Mizanur Rahman

Re: Antivirus

by TOMA DEY -
Antivirus software is designed to detect, prevent, and remove malicious software (malware) from a computer system or network. Antivirus software typically works by using a combination of signature-based detection and behavior-based detection. Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.
Some common features of antivirus software include:
Real-time scanning: Antivirus software constantly scans files as they are accessed or downloaded to detect and prevent malware infections.
Automatic updates: Antivirus software regularly updates its database of malware signatures to ensure it can detect the latest threats.
Quarantine: If the antivirus software detects a file or program that is infected with malware, it will typically quarantine or isolate the file to prevent it from causing further harm.
Scheduled scans: Antivirus software can be configured to perform scheduled scans of a computer system or network to detect and remove malware.
Firewall: Many antivirus software also includes a firewall feature that helps to block unauthorized access to a network or computer system.
Email protection: Some antivirus software includes email protection features to scan email attachments for malware and prevent phishing attacks.
In reply to Md Mizanur Rahman

Re: Antivirus

by Md Nahedul Islam Munna -
Antivirus software is designed to protect computers and other devices from malicious software, commonly known as malware. Antivirus software works by detecting and removing malware from the system, preventing it from causing harm to the device and its data.

Here are some of the common features of antivirus software:

  1. Real-time scanning: Antivirus software continuously scans the computer in real-time to detect and remove any malware that may be present on the system.
  2. Virus definition updates: Antivirus software relies on virus definition databases to identify and remove malware. These databases are regularly updated to ensure that the antivirus software can detect and remove the latest malware threats.
  3. Malware removal: When malware is detected, the antivirus software will attempt to remove it from the system. This may involve quarantining the malware or deleting it altogether.
  4. Email scanning: Many antivirus programs also offer email scanning capabilities to protect against malware that may be transmitted via email attachments or links.
  5. Firewall protection: Antivirus software may also include a firewall to prevent unauthorized access to the system and block malicious traffic.
  6. Browser protection: Some antivirus software includes browser protection to block malicious websites and prevent malware from being downloaded via web browsers.
  7. Parental controls: Antivirus software may also include parental controls to help parents monitor and restrict their children's access to certain websites and online content.
In reply to Md Mizanur Rahman

Re: Antivirus

by Shadman Sajid -
Antivirus software is designed to protect computers and other devices from malicious software, commonly known as malware. Antivirus software works by detecting and removing malware from the system, preventing it from causing harm to the device and its data.

Here are some of the common features of antivirus software:

Real-time scanning: Antivirus software continuously scans the computer in real-time to detect and remove any malware that may be present on the system.
Virus definition updates: Antivirus software relies on virus definition databases to identify and remove malware. These databases are regularly updated to ensure that the antivirus software can detect and remove the latest malware threats.
Malware removal: When malware is detected, the antivirus software will attempt to remove it from the system. This may involve quarantining the malware or deleting it altogether.
Email scanning: Many antivirus programs also offer email scanning capabilities to protect against malware that may be transmitted via email attachments or links.
Firewall protection: Antivirus software may also include a firewall to prevent unauthorized access to the system and block malicious traffic.
In reply to Md Mizanur Rahman

Re: Antivirus

by Kakoly Islam Tanjum -
Antivirus software is designed to detect, prevent, and remove malicious software (malware) from a computer system or network. Antivirus software typically works by using a combination of signature-based detection and behavior-based detection. Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.
Some common features of antivirus software include:
Real-time scanning: Antivirus software constantly scans files as they are accessed or downloaded to detect and prevent malware infections.
Automatic updates: Antivirus software regularly updates its database of malware signatures to ensure it can detect the latest threats.
Quarantine: If the antivirus software detects a file or program that is infected with malware, it will typically quarantine or isolate the file to prevent it from causing further harm.
Scheduled scans: Antivirus software can be configured to perform scheduled scans of a computer system or network to detect and remove malware.
Firewall: Many antivirus software also includes a firewall feature that helps to block unauthorized access to a network or computer system.
Email protection: Some antivirus software includes email protection features to scan email attachments for malware and prevent phishing attacks.
In reply to Md Mizanur Rahman

Re: Antivirus

by MH Meraz 15-3212 -
Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.

Feature:-
Background Scanning - Antivirus software helps to scan all the applications, files and programs that are opened from the backend. This process is called an on-access scanning. This ensures real-time protection, giving complete computer protection from threats and other malware attacks.
In reply to Md Mizanur Rahman

Re: Antivirus

by Md.Atiqur Rahman -
Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.

Traditional detection-based antivirus products have had a strong hold on the security market for years. However, recently, due to an exponential rise in cybercrime and malware, these traditional antiviruses have been rendered ineffective against many emerging threats. Today, hackers are better equipped than many cybersecurity companies, with their own quality analysis labs and penetration tools to verify if their new malware samples are being detected with bootleg multi-engine scanning sites. If identified, hackers modify the code and perform the same test until the malware goes undetected.
In reply to Md Mizanur Rahman

Re: Antivirus

by Jebin Ahmed Prova -
Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.

Features of antivirus :
i)Background Scanning : Antivirus software helps to scan all the applications, files and programs that are opened from the backend.This process is called an on-access scanning. This ensures real-time protection, giving complete computer protection from threats and other malware attacks.
ii)Complete System Scans : Full system scans are by and large not really vital when you have an on-access scanning system in hand. Full system scans become indispensable when an antivirus software is installed for the first time or if the antivirus software is not updated with new virus definitions recently.
iii)Virus Definitions : Antivirus software functions based on the virus definitions to recognize if the file/program is genuine or malware intended. That is the main reason to archive on the new virus definitions. The virus definitions stashes the signatures of any viruses that has been categorized as infectious in the wild.
In reply to Md Mizanur Rahman

Re: Antivirus

by Jasia Binte Alam -
During a file, program, or application scan, antivirus software compares a particular set of code with data from its database. It considers code to be malware and quarantines or removes it if it resembles or is identical to a known piece of malware found in the database.

Feature:

Background Scanning: Antivirus software aids in the background scanning of all applications, files, and programs that are launched. An on-access scan is what is done throughout this phase. This guarantees real-time defense, providing total computer security from cyberattacks and other malware assaults.

Complete System Scans : When you have an on-access scanning system at your disposal, full system scans are typically not that important. When installing antivirus software for the first time or if the antivirus software has not recently received an update with new virus definitions, full system scans become essential. This is done to make sure that the system is free of malware infections that might be hidden in the system's code. Complete framework checks are also useful when you clean up your infected computer.

Virus Definition: Antivirus software uses virus definitions to determine if a file or application is legitimate or maliciously designed. The fundamental justification for archiving the most recent viral definitions is this. The signatures of any viruses that have been identified as contagious in the wild are stored in the virus definitions. When an antivirus tool scans a program or file and discovers that the file is infected with malware that resembles malware in the malware definition, the program or file is prevented from running and transferred into the quarantine. The malware is then processed by the antivirus program before being sent to a lab for study of its characteristics and motivation.
In reply to Md Mizanur Rahman

Re: Antivirus

by Rakibul Hasan Anik -
Antivirus software starts working by comparing the files and programs on your computer to a database of known malware kinds. It will also scan systems for the potential presence of new or unidentified types of malware threats because hackers are continually producing and disseminating new infections.

The majority of programs typically employ three different detection methods: heuristic detection, which searches for unknown viruses by identifying known suspicious file structures, generic detection, which seeks out known malware parts, types, or patterns that share a common codebase, and specific detection, which locates known malware by identifying known suspicious file structures. A virus-containing file will often be quarantined by the application and/or marked for deletion when it is discovered, rendering it unavailable and reducing the risk to your device.
Feature:

Background Scanning: Antivirus software aids in the background scanning of all applications, files, and programs that are launched. An on-access scan is what is done throughout this phase. This guarantees real-time defense, providing total computer security from cyberattacks and other malware assaults.

Complete System Scans : When you have an on-access scanning system at your disposal, full system scans are typically not that important. When installing antivirus software for the first time or if the antivirus software has not recently received an update with new virus definitions, full system scans become essential. This is done to make sure that the system is free of malware infections that might be hidden in the system's code. Complete framework checks are also useful when you clean up your infected computer.

Virus Definition: Antivirus software uses virus definitions to determine if a file or application is legitimate or maliciously designed. The fundamental justification for archiving the most recent viral definitions is this. The signatures of any viruses that have been identified as contagious in the wild are stored in the virus definitions. When an antivirus tool scans a program or file and discovers that the file is infected with malware that resembles malware in the malware definition, the program or file is prevented from running and transferred into the quarantine. The malware is then processed by the antivirus program before being sent to a lab for study of its characteristics and motivation.
In reply to Md Mizanur Rahman

Re: Antivirus

by Sudip Dey -
Here is how antivirus works:
Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.

Features of antivirus :
-Background Scanning : Antivirus software helps to scan all the applications, files and programs that are opened from the backend.This process is called an on-access scanning. This ensures real-time protection, giving complete computer protection from threats and other malware attacks.
-Complete System Scans : Full system scans are by and large not really vital when you have an on-access scanning system in hand. Full system scans become indispensable when an antivirus software is installed for the first time or if the antivirus software is not updated with new virus definitions recently.
-Virus Definitions : Antivirus software functions based on the virus definitions to recognize if the file/program is genuine or malware intended. That is the main reason to archive on the new virus definitions. The virus definitions stashes the signatures of any viruses that has been categorized as infectious in the wild.
In reply to Md Mizanur Rahman

Re: Antivirus

by Arithro Somodder -
Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.

Traditional detection-based antivirus products have had a strong hold on the security market for years. However, recently, due to an exponential rise in cybercrime and malware, these traditional antiviruses have been rendered ineffective against many emerging threats. Today, hackers are better equipped than many cybersecurity companies, with their own quality analysis labs and penetration tools to verify if their new malware samples are being detected with bootleg multi-engine scanning sites. If identified, hackers modify the code and perform the same test until the malware goes undetected.
In reply to Md Mizanur Rahman

Re: Antivirus

by Md. Naimur Rahman -
Antivirus software is a type of security software that is designed to detect, prevent, and remove malicious software, such as viruses, worms, trojan horses, spyware, adware, and other types of malware from computer systems. Here is a brief overview of how antivirus works and some of its features:

1. Detection: Antivirus software uses a combination of signature-based detection, behavioral analysis, and heuristic analysis to detect malware. Signature-based detection compares files or code to a database of known malware signatures. Behavioral analysis looks for patterns of behavior that may indicate malware, such as attempting to modify system files or accessing sensitive information. Heuristic analysis uses machine learning algorithms to detect new and unknown malware based on behavior patterns.

2. Prevention: Antivirus software can prevent malware infections by blocking access to malicious websites, email attachments, and files downloaded from the internet. It can also prevent malware from spreading by scanning network traffic and blocking communication with infected systems.

3. Removal: If malware is detected, antivirus software can remove it from the infected system. It can also quarantine infected files, preventing them from infecting other files on the system.

4. Real-time protection: Antivirus software can provide real-time protection by scanning files and processes in memory as they are accessed, detecting and blocking malware before it can infect the system.

5. Automatic updates: Antivirus software needs to be regularly updated with the latest malware signatures and detection algorithms to be effective. Most antivirus software automatically updates itself to ensure the latest protection.

6. Scanning options: Antivirus software provides various scanning options, such as quick scans, full system scans, and custom scans, allowing users to choose the level of scanning that suits their needs.

7. Compatibility: Antivirus software should be compatible with different operating systems and software applications. It should also have minimal impact on system performance.

Overall, antivirus software is an essential security tool that helps protect computer systems from malware infections and prevent the loss of sensitive data. By regularly scanning and updating the system, antivirus software can keep the system protected from the latest security threats.
In reply to Md Mizanur Rahman

Re: Antivirus

by Shuva majumder -
Antivirus software is designed to detect, prevent, and remove malicious software, such as viruses, trojans, and other types of malware. Antivirus software works by scanning files and directories on a computer for known patterns of malicious code, and comparing these patterns against a database of known malware signatures.
Real-time scanning: Antivirus software constantly monitors a computer for any signs of malicious activity, and alerts the user if any threats are detected.

Automatic updates: Antivirus software is updated regularly with new malware signatures and threat intelligence to ensure that it can detect the latest threats.

Quarantine and removal: Antivirus software can isolate and remove infected files to prevent further damage to a computer or network.

Firewall protection: Some antivirus software also includes firewall protection, which can block unauthorized access to a computer or network.

Email scanning: Antivirus software can scan incoming and outgoing emails for malware and prevent the spread of infected emails.

Scheduled scanning: Antivirus software can be set up to automatically scan a computer or network on a regular basis, such as daily or weekly, to ensure that it is free of malware.

Behavioral analysis: Some antivirus software uses behavioral analysis to detect new and unknown malware threats by analyzing the behavior of programs and processes on a computer.
In reply to Md Mizanur Rahman

Re: Antivirus

by 201-15-3177 Partha Kha -
Antivirus software works by scanning files for known virus signatures or analyzing their behavior to detect and prevent new threats. It provides real-time scanning, quarantine, automatic updates, and firewall protection to keep your computer safe from malware and viruses.
In reply to Md Mizanur Rahman

Re: Antivirus

by Al Mohidur Rahman Porag 201-15-3462 -
An antivirus software is designed to detect, prevent, and remove malicious software or malware from a computer system. It operates by scanning files and programs for known patterns of malicious code or suspicious behavior. Here are some of the key features of an antivirus:

Real-time protection: This feature scans files and programs as they are accessed or downloaded to prevent malware from infecting the system.

Scanning and detection: Antivirus software scans the system regularly to detect any malware that may have slipped through real-time protection.

Quarantine: If a file or program is suspected of being infected, the antivirus software will quarantine it to prevent it from causing harm to the system.

Removal and cleanup: Once a virus has been detected, the antivirus software will attempt to remove it from the system and clean up any damage it may have caused.

Automatic updates: Antivirus software regularly updates its virus definitions and software to stay up-to-date with the latest threats and protect against them.

Customizable settings: Users can customize the settings of their antivirus software to suit their needs and preferences.

Overall, antivirus software is an essential tool in protecting computer systems from malware and keeping them running smoothly.
In reply to Md Mizanur Rahman

Re: Antivirus

by Md Shohag -
During a file, program, or application scan, antivirus software compares a particular set of code with data from its database. It considers code to be malware and quarantines or removes it if it resembles or is identical to a known piece of malware found in the database.

Background Scanning: Antivirus software aids in the background scanning of all applications, files, and programs that are launched. An on-access scan is what is done throughout this phase. This ensures real-time protection, giving complete computer protection from threats and other malware attacks.
In reply to Md Mizanur Rahman

Re: Antivirus

by Chraboni Mondal201-15-3202 -
Antivirus software is designed to detect, prevent and remove malicious software, or malware, from computer systems. There are several types of malware, including viruses, worms, Trojans, adware, and spyware. Antivirus software uses a combination of techniques to detect and remove these threats.

The basic features of antivirus software include:

Real-time scanning: This feature constantly monitors the system for malware and other threats. When a suspicious file is detected, the antivirus software will either remove the file or prompt the user to take action.

Scheduled scanning: Antivirus software can be scheduled to scan the system at regular intervals. This ensures that the system is regularly checked for malware and other threats.

Malware removal: If malware is detected, the antivirus software will attempt to remove it from the system. Depending on the severity of the infection, this may involve quarantining the infected file or removing it entirely.
In reply to Md Mizanur Rahman

Re: Antivirus

by Maruf hasan 15-3524 -
Antivirus software is a type of security software that is designed to detect, prevent, and remove malicious software, such as viruses, worms, trojan horses, spyware, adware, and other types of malware from computer systems. Here is a brief overview of how antivirus works and some of its features:

1. Detection: Antivirus software uses a combination of signature-based detection, behavioral analysis, and heuristic analysis to detect malware. Signature-based detection compares files or code to a database of known malware signatures. Behavioral analysis looks for patterns of behavior that may indicate malware, such as attempting to modify system files or accessing sensitive information. Heuristic analysis uses machine learning algorithms to detect new and unknown malware based on behavior patterns.

2. Prevention: Antivirus software can prevent malware infections by blocking access to malicious websites, email attachments, and files downloaded from the internet. It can also prevent malware from spreading by scanning network traffic and blocking communication with infected systems.

3. Removal: If malware is detected, antivirus software can remove it from the infected system. It can also quarantine infected files, preventing them from infecting other files on the system.

4. Real-time protection: Antivirus software can provide real-time protection by scanning files and processes in memory as they are accessed, detecting and blocking malware before it can infect the system.

5. Automatic updates: Antivirus software needs to be regularly updated with the latest malware signatures and detection algorithms to be effective. Most antivirus software automatically updates itself to ensure the latest protection.

6. Scanning options: Antivirus software provides various scanning options, such as quick scans, full system scans, and custom scans, allowing users to choose the level of scanning that suits their needs.

7. Compatibility: Antivirus software should be compatible with different operating systems and software applications. It should also have minimal impact on system performance.

Overall, antivirus software is an essential security tool that helps protect computer systems from malware infections and prevent the loss of sensitive data. By regularly scanning and updating the system, antivirus software can keep the system protected from the latest security threats.
In reply to Md Mizanur Rahman

Re: Antivirus

by Sazzad Hosain Sagor -
Antivirus software scans a file, program, or an application and compares a specific set of code with information stored in its database. If it finds code that is identical or similar to a piece of known malware in the database, that code is considered malware and is quarantined or removed.
Features of Antivirus Software,
1. Background Scanning
2.Complete System Scans
3.Virus Definitions
In reply to Md Mizanur Rahman

Re: Antivirus

by Mafujul Haque Plabon -
Antivirus works:
Antivirus software scans a file, program, or an application and compares a specific set of code
with information stored in its database. If it finds code that is identical or similar to a piece of
known malware in the database, that code is considered malware and is quarantined or removed.
Features of Antivirus Software:
1. Background Scanning - Antivirus software helps to scan all the applications, files and
programs that are opened from the backend. This process is called an on-access scanning. This
ensures real-time protection, giving complete computer protection from threats and other
malware attacks.
2. Complete System Scans - Full system scans are by and large not really vital when you have
an on-access scanning system in hand. Full system scans become indispensable when an
antivirus software is installed for the first time or if the antivirus software is not updated with
new virus definitions recently. This is done to ensure that there are no malware infections
hiding behind the codes on the system. Full framework checks are additionally valuable when
you repair your contaminated PC.
3. Virus Definitions - Antivirus software functions based on the virus definitions to recognize if
the file/program is genuine or malware intended. That is the main reason to archive on the new
virus definitions. The virus definitions stashes the signatures of any viruses that has been
categorized as infectious in the wild. In the event that the antivirus software checks any
application or file and that it finds the document infected by a malware that looks similar to
the malware in the malware definition, then that file or program is stopped from executing and
then it is moved into the quarantine. The antivirus software then processes the malware and
later sends it to the lab for analysis on the traits and the purpose behind the malware creation.
In reply to Md Mizanur Rahman

Re: Antivirus

by Towhid Mohammed Alam -
Antivirus software is a type of computer program that is designed to detect, prevent, and remove malicious software, or malware, from a computer system. Here are the key features of antivirus software:

Virus detection: Antivirus software uses various techniques to detect viruses and other types of malware. These techniques include signature-based detection, behavior-based detection, and heuristics-based detection.

Real-time scanning: Antivirus software constantly scans the computer system in real-time for malware, and automatically removes or quarantines any threats that are detected.

Automatic updates: Antivirus software automatically updates its virus definitions and software versions to ensure that it is up-to-date with the latest threats.

Quarantine and removal: Antivirus software quarantines infected files to prevent them from further spreading the infection, and provides users with options to remove or repair the infected files.

Email scanning: Many antivirus software includes an email scanner that checks incoming and outgoing emails for malware.